US PATENT SUBCLASS 182 / 95
.~.~ Folding, rigid components
Current as of:
June, 1999
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182 /
HD
FIRE ESCAPE, LADDER, OR SCAFFOLD
82
DF
WALL- OR FLOOR-ATTACHED
{7}
93
DF
.~ Ladder {4}
95
.~.~ Folding, rigid components {1}
96
DF
.~.~.~
> Parallelogram type
DEFINITION
Classification: 182/95
(under subclass 93) Device said ladder comprising rigid components mounted for hinged motion therebetween to permit folding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
156+, for a unitary foldable rigid ladder.